On October 1, 2007, in Washington, DC, the Postal Service issued 41-cent, Polar Lights commemorative stamps in two designs in a pressure-sensitive adhesive (PSA) pane of 20 (Item 461900), designed by Phil Jordan of Falls Church, Virginia. This pane of 20 stamps features photographs of auroras. The photograph of the aurora borealis, or northern lights, was made by Fred Hirschmann of Wasilla, Alaska. The photograph of the aurora australis, a phenomenon of the southern polar region, was made by Per-Andre Hoffmann who resides in Manila, Philippines. These two designs were previously issued as 84-cent stamps on a $1.68 International Polar Year Souvenir Sheet (Item 569800) on February 21, 2007.